Air ventilating device



zmmm

March M 1195@ K. J. DosMAR AIR VENTILATING DEVICE Filed Sept. 27, 1946 A T TORNEY KURT J. DO5MAR atented Mar. 14, 1950 UNITED STATES PATENT OFFICE 2,500,606 7 AIR VENTILATING DEVICE Kurt J. Dosmar, New York, N. Y.

Application September 27, 1946, Serial No. 699,860

Claims. 1

This invention relates to air cooling or ventilating systems and apparatus for rooms of homes.

It is an object of the present invention to provide an air cooling or ventilating system inwhich the air will be directed in the direction desired in the form of curtain like air streams, whereby a more favorable control and effect of the ventilating air can be had.

It is another object of the invention to provide an air ventilating apparatus which can be adapted or located in aposition surrounding the person whereby a full effect of the air can be had without greatly affecting any of the other people who may be in the same room.

It is another object of the invention to provide an air ventilating apparatus in which the air is blown in a curtain like manner, whereby to provide an even flow about the person or within a window opening to control the air entering the same and thus not be directed in full blast upon the body of a person within the room.

According to the invention, a wind motor in the form of a box containing an electric motor and fans driven therefrom has a plurality of outlets to which a flexible air hose can be connected to deliver air to any one or a plurality of nozzle devices adapted to be located upon the floor about the person to be benefitted by the air streams or within a window opening as upon the sill thereof.

The motor of the wind box is connected by an electric cord with any appropriate outlet within a room. If the person to be benefitted is to sit in a chair the several nozzle devices will be disposed on the floor about the chair, at opposite sides thereof and at the front and rear. Vertical curtains of air will be extended upwardly to enclose the person therewithin. The blown air will not be directed upon the persons body but will be extended up vertically above the same thereby causing a removal of the air within the region of the person without the person being struck by a direct blast of the air. When the various outlets of the wind box are not in use they may be covered with a closure cap or plug.

Another arrangement of the present invention is where one of the nozzle devices is located on a sill of an open window. Outside air tending to enter the room will be stabilized by the vertical curtain of air being forced upwardly from the sill. Such air that is entering the room therefore will be directed vertically upwardly and not directly upon a person within the room.

For further comprehension of the invention,

and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:

Fig. l is a perspective view of the arrangement wherein the wind box is connected to a single nozzle device resting upon a sill of a window to direct a curtain of air upwardly and normal to the axis of the window opening.

Fig. 2 is a cross sectional view of the wind box and a partial cross sectional view of the nozzle device adapted for use in a window opening.

Fig. 3 is an illustrative view of the arrangement set up for use above a chair in which a person may be seated and employing a plurality of nozzle devices. I

Fig. 4. is a perspective view of a modified form of a nozzle device adapted to rest upon a fiat horizontal surface wherein the air curtain may be directed either to a vertical or to a position angled therefrom.

Fig. 5 is a transverse cross sectional view taken along the line 5--5 of Fig. 4, looking in the direction of the arrows thereof.

Fig. 6 is a perspective view of a modified form of air curtain forming device wherein the air flow can be controlled.

Referring now to the figures, l0 represents a wind box or breeze creating machine having a plurality of outlets II in the top-thereof to each of which a flexible hose l2 may be connected. When the outlets H are not in use they may be closed by a threaded stopper or plug it. The hose l2 leads to a nozzle device M which may be locatedat any place on the floor or in the sill of a window opening. In the illustration of Figs. 1 and 2, the nozzle device M is shown disposed in the sill of an opening l5 of a window.

The wind-box ID has in its interior an electric motor l8 which is connected to fan blades I1 and I8 on opposite sides thereof through appropriate respective gear connections I!) and 2|. By the blades [1 and 8'8 air is drawn into the box IE through appropriate inlet openings 22 and is directed toward the outlets H in the top of the box. The outlet having the hose 12 connected thereto will receive the air and this air will be directed through the hose to the nozzle or ourtain-forming device M. The motor I6 is of the electric type and receives its power or current for the operation of the same through a cord 23 1 device 32. i 32 strategically positioned about thenchair, one large arcuate shaped one 32' being at the rear adapted to be connected through its plugs 24 to a receptacle in the room. The box It can be located anywhere in the room and the motor It can be set in operation by pushing a switch button 25 located on one side of the box.

The nozzle device It is preferably made of rubher or aluminum and is of elongated shape having a plurality of holes 2% or perforations arranged in a longitudinally extending row and slightly spaced from one another so as tothrow. upwardly a vertical curtain of air. This vertical curtain of air is indicated at 2? and is shown to cover the full area of the opening l5. This vertical curtain of air will tend to break up any wind or air that is tending to naturally pass into the window opening and prevent it from flowing upon a person within the room. .This air tending to enter the window opening willbe blown upwardly and into the top part of the room by this air curtain 21, and thereby directed to the room at a point Where it could not fall or strike uponone in the room. At the top of the window opening there may be; provideda reflector 28, by which the air may be reflected into the interior, of the room.

This'reflector 23 may be coupled as indicated at 29 upon the exterior of a top window 363 or it may be connected to the interior with appropriate attings being provided upon the inner window which is up so ,that the reflectorwill be inside during dry days. On wet or rainy days reflectorzdis located onthe exterior as shown, wherebyto keep out too much moisture from the room.

Referring now particularly to Fig. 3,-there is shown an arrangement where an air curtain is placed about a person sitting in a chair .3l. In

this instance, the. box H3 may have more. thanthc.

four outlets shown in Fig, l and each of these outlets are connected to a nozzle curtain forming There are a plurality of these devices.

ofthe chair, one being located at each side, of the chair and two located in front of the, chain ;It

will be apparent, that when the wind creating,

box H3 is turned on that there will be a plurality of air curtains extended upwardly alongside of the person sitting in the chair3l and surround.- ing him. None of the air will be directed against his body and thus he will not feel any uncomfortable effect from the system. Air will be gradually-removed from the zonerofmhis presence and replenished by new air. No air will be blown directly on the body of the person .as wouldbe the case of an ordinary electric fan as when it is used to cool a person.

Referring now particularly to Figs. 4 and 5,"

there is shown a modified form of nozzle or air curtain forming device. This device has the usual-elongated member but this member is of circular section, as indicated at 35, so that it may be rotated upon a support and in -a top groove thereof in which the, member, can be rested,

The member 35 has the hose 12 connected to it and also has a plurality of longitudinally space air holesfiil. Normally, the air would be directed straightupwardly as indicated by the arrow 38 of Fig.5, but should it be desired to have the air curtain angled from the vertical themember 35 can be rotated in its support 36 from one side. tothe other so that its air curtain will be directedas indicated byyeither of the arrows 39 or' l depending upon which'way'the member 35 has been turned. The-air would'then be directed tern. The device shown in Figs. 4 and 5 may thus be substituted for the device I4, where the occasion demands that an adjustable device he used. Referring to Fig. 6, a base 4| has an upwardly extending portion 42. A hollow cylinder 53 is provided with a pair of spaced rows 34 and of air holes. If desired the cylinder can be rotated under the portion 42 to block off the row 35 to cut down the air capacity to one-half.

:While ;I' have illustrated and described: the preferredembodiments of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and the right isreserved to all changes and modifications coming within the scope of the invention as deforming device rested on a window sill-and connected to the source of air under pressure, said forming, device .being provided w th; a plurality of longitudihnllysnaoedair,,outlets for directing a curtail of, air .upward,across ,,the open window so as to diffuse currents ofairv which ,would normally pass through ,the .window. opening at right angles to the curtain ,of air,., a,rei lector disposed. on the sideofthewindfiw. opening o'pposite, the air curtainforming i8vice and nor+ inall-yprojected intothe room. for directing the curtainof air into the .roorn ,after traversing the window openinacandmeans releasably attaching the reflector'to the outside of the. Win-L dow during inclement weatherito prevent rain from enteringthe, openwindow,

2. In, aportable air ventilatingapparatushaving a source of air under pressure, anaircurtain forming device rested. on window sill and con nected tothesource of air under pressure, sai d forming device being provided with a, plurality.

of longitudinally spaced airoutlets; for directing acurtain .of air upwardacross the. open window r so asto diffuse currents of airwhichwould normallypass through the. window opening at right angles to the'curtain of air, a reflector disposed onthe side of the Winduw opening opposite the, air curtain forming fdevice and normally, projected into the room for' directing, the curtain of air into the room after traversing the window.

openingand means releasably attaching'the reflector to the outside of the window during inclement weather to prevent-rain' from entering the open window, said air curtain forming device comprises a tubular member formed with the row of air outlets alongthe top side, and means supporting the tubular member so that it may be turned slightly to vary the discharge'an'gle of the curtain of air.

3. Ina portable air ventilating anparatushav inga source of airunder pressure, an air curtain forming device 'restedon a window sill and connected to the source of air under pressure, said forming device being providedwith a plurality of longitudinally spaced 'air "outlets for directing a curtain of air upward acrosst-heopen window so as to diffuse currents of air which would-normally pass through thewindow opening at right angles to thecurtain of air,-a reflector disposed on the side of the window opening opposite the curtain forming device and normally projected into the room for directing the curtain still in the form of a curtain and need not be turned to such an extent where it would directly contact the p'ersonto be benefitted by-thissysa of airinto the room after traversing the window 7 opening, and means releasabl-y attaching the reflector to-the outside of the window during-inclement weather to prevent rain from entering the open window, said air curtain forming device comprises a tubular member formed with the row of air outlets along the top side, and means supporting the tubular member so that it may be turned slightly to vary the discharge angle of the curtain of air, said supporting means comprising a base formed with a longitudinal groove in which the tubular member is rested to be manually turned as desired.

4. In a portable air ventilating apparatus having a source of air under pressure, an air curtain forming device rested on a window sill and connected to the source of air under pressure, said forming device being provided with a plurality of longitudinally spaced air outlets for directing a curtain of air upward across the open window so as to diffuse currents of air which would normally pass through the window opening at right angles to the curtain of air, a reflector disposed on the side of the window opening opposite the air curtain forming device and normally projected into the room for directing the curtain of air into the room after traversing the window opening, and means releasably attaching the refiector to the outside of the window during inclement Weather to prevent rain from entering the open window, said forming device comprising a tubular member formed with a plurality of rows of air outlets through which air may discharge, and means supporting the tubular member so that certain of the rows of outlets may be blocked to control the volume of discharging air.

5. In a portable air ventilating apparatus having a source of air under pressure, an air curtain forming device rested on a window sill and connected to the source of air under pressure, said forming device being provided with a plurality of longitudinally spaced air outlets for directing a curtain of air upward across the open window so as to difiuse currents of air which would normally pass through the window opening at right angles to the curtain of air, a reflector disposed on the side of the window opening opposite the air curtain forming device and normally projected into the room for directing the curtain of air into the room after traversing the window opening, and means releasably attaching the reflector to the outside of the window during inclement weather to prevent rain from entering the open window, said forming device comprising a tubular member formed with a plurality of rows of air outlets through which air may discharge, and means supporting the tubular member so that certain of the rows of outlets may be blocked to control the volume of discharging air, said supporting means comprising a base member formed with a longitudinal groove in which the tubular member is rotatively rested, said base member having a portion at one side extending upwardly at a point adjacent one of the rows of outlets so that the tubular member may be rotated to a position in which the upstanding portion Will block the discharge of air from one row of openings.

KURT J. DOSMAR.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 935,850 Kirk Oct. 5, 1909 955,871 Hamann Apr. 26, 1910 1,113,179 Anderson Oct. 13, 1914 1,129,619 Zapf Feb. 23, 1915 1,649,290 De Neen Nov. 15, 1927 1,657,066 Burke Jan. 24, 1928 2,097,751 Baltich Nov. 2, 1937 2,209,054 Doud et a1 July 23, 1940 2,210,458 Keilholtz Aug. 6, 1940 2,217,729 Chancey Oct. 15, 1940 FOREIGN PATENTS Number Country Date 813,872 France Mar. 8, 1937 

